Lifting lug structure of automobile exhaust system

Abstract

The invention provides a lifting lug structure of an automobile exhaust system. The lifting lug structure comprises an outer framework, a lifting lug body, an upper buffer block, a lower buffer block and two elastic pieces. The middle of the outer framework is hollowed out to form a lifting lug space, the top of the outer framework is provided with a first installation plane, the back of the outer framework is provided with a second installation plane, through the first installation plane and the second installation plane, the installation universality of the lifting lug is enhanced, top installation and side installation can be achieved, and the lifting lug is suitable for the situation that the Z-direction installation space is narrow. The lifting lug body is arranged in the middle of the lifting lug space; the upper buffer block is arranged at the top in the lifting lug space; the lower buffer block is arranged at the inner bottom of the lifting lug space; one elastic piece is arranged between the lifting lug body and the upper buffer block, and the other elastic piece is arranged between the lifting lug body and the lower buffer block; the elastic piece arranged in the lifting lug space is in contact with the lifting lug body before the upper buffer block or the lower buffer block, so that the fatigue load borne by the lifting lug body is relieved.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of automobile exhaust system accessories, especially a kind of hanger structure of automobile exhaust system. BACKGROUND

[0002] The hanger structure of the exhaust system of current hybrid vehicle is generally installed on top, but this requires enough Z-direction installation space, when Z-direction installation space is cramped, installation tool is difficult to extend into. SUMMARY

[0003] In view of the deficiencies in the prior art, the present application provides a kind of hanger structure of automobile exhaust system, retain the function of installing on top while having the side-mounted condition under the limit boundary, configure elastic piece to adapt to the shock absorption demand of exhaust system.The technical scheme adopted by the present application is: A kind of hanger structure of automobile exhaust system, comprising: Outer skeleton, the middle hollow is formed into hanger space, its top is configured as first installation plane, its back is configured as second installation plane; Hanger body, set in the middle part of the hanger space, it is provided with lifting hole on it; Upper buffer block, set in the top of the hanger space; Lower buffer block, set in the bottom of the hanger space; Two elastic pieces, one of the elastic pieces is set between the hanger body and the upper buffer block, and the other elastic piece is set between the hanger body and the lower buffer block.

[0004] Further, at least two first installation bolts are provided on the first installation plane.

[0005] Further, at least two second installation bolts are provided on the second installation plane.

[0006] Further, the back of the outer skeleton is detachably provided with a back plate, and the second installation plane is configured as the back of the back plate.

[0007] Further, the back plate is connected with the outer skeleton by third installation bolt.

[0008] Further, the back of the outer skeleton extends forward to form a hollow slot.

[0009] Further, the hanger body, upper buffer block, lower buffer block are all of rubber material, the outer skeleton is of aluminum material, and the hanger body, upper buffer block, lower buffer block are vulcanized with the outer skeleton.

[0010] Further, the elastic member is a nylon elastic band, which is arranged along the transverse direction, and two ends of the nylon elastic band are respectively fixedly attached to the inner side walls of the lug space.

[0011] Further, the lug body is arched.

[0012] Further, the bottom surface of the upper buffer block is wavy in shape; and / or, The top surface of the lower buffer block is concave downward in the middle.

[0013] Advantages of the present application: Through the first mounting plane and the second mounting plane, the mounting versatility of the lug is enhanced, and the lug can be mounted on top and mounted on the side, and is suitable for the case that the Z-direction mounting space is cramped; Through the nylon elastic band, the shock absorption requirement of the exhaust system can be met, and the rigidity curve of the lug body can be adjusted by replacing the length and tightness of the elastic band, so as to reduce the fatigue load borne by the lug body; Through the detachable back plate, different mounting boundaries can be matched, and in different occasions, only the back plate needs to be replaced, without the need to re-open the exoskeleton or the lug body. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a first perspective structural view of the present application.

[0015] Figure 2 It is a second perspective structural view of the present application.

[0016] Figure 3 It is a front view of the present application.

[0017] Figure 4 It is a side view of the present application.

[0018] Figure 5 It is a schematic view of the top-mounted state of the present application.

[0019] Figure 6 It is a schematic view of the side-mounted state of the present application.

[0020] Figure 7 It is a deformation (mm)-force (N) rigidity curve of the elastic band in different mounting states.

[0021] In the figure: 100-exoskeleton, 110-lug space, 120-first mounting bolt, 130-second mounting bolt, 140-third mounting bolt, 150-hollow groove, 200-lug body, 210-lug hole, 300-upper buffer block, 400-lower buffer block, 500-elastic member, 600-back plate, 700-lug hook, 800-side mounting plate, 900-top mounting plate. DETAILED DESCRIPTION

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 4 This application proposes a hanger structure for an automotive exhaust system, including an outer frame 100, a hanger body 200, an upper buffer block 300, a lower buffer block 400, and two elastic elements 500. The outer frame 100 has a hollowed-out middle section forming a hanger space 110, with its top configured as a first mounting plane and its back configured as a second mounting plane. The hanger body 200 is disposed in the middle of the hanger space 110 and has a hanger hole 210 thereon. The upper buffer block 300 is disposed at the top of the hanger space 110. The lower buffer block 400 is disposed at the bottom of the hanger space 110. One of the elastic elements 500 is disposed between the hanger body 200 and the upper buffer block 300, and the other elastic element 500 is disposed between the hanger body 200 and the lower buffer block 400.

[0024] Appendix Figure 1 This is a first-view view of the lifting lug structure. The attached diagram shows an outer frame 100 with a general elliptical shape. Its top is configured as a first mounting plane for easy contact with other mounting surfaces, and its back is configured as a second mounting plane for similar purposes. Utilizing these two different mounting planes allows the outer frame 100 to be mounted from both the top and side. For applications with limited Z-axis mounting space, the back connection avoids the disadvantages of confined space. (Attached) Figure 1 The elastic element 500 is mainly used for shock absorption. It is designed to address the vertical displacement of the hook-driven lifting lug body 200 within the lifting lug space 110 caused by vibrations during vehicle operation. The elastic element 500 installed in the lifting lug space 110 contacts the lifting lug body 200 before the upper buffer block 300 or the lower buffer block 400, and gradually undergoes elastic deformation as the lifting lug body 200 displaces. This causes the elastic element 500 to generate resistance against the lifting lug body 200, thereby reducing the fatigue load on the lifting lug body 200. The upper buffer block 300 and the lower buffer block 400 further buffer the impact deformation of the lifting lug body 200, further achieving the shock absorption effect.

[0025] In one embodiment, to ensure the stability of the outer frame 100 during top mounting, at least two first mounting bolts 120 are provided on the first mounting plane. (See attached image) Figure 5The top-mounted state of the exoskeleton 100 is shown, and the first mounting bolt 120 is screwed into the threaded hole at the top of the exoskeleton 100 from top to bottom through the top mounting plate 900. The number of first mounting bolts 120 is determined according to the size of the mounting surface and the required connection strength, and no specific number is required.

[0026] In an embodiment, in order to ensure the stability of the exoskeleton 100 when mounted on the side, at least two second mounting bolts 130 are arranged on the second mounting plane. Figure 6 The state of the exoskeleton 100 when mounted on the side is shown, and the second mounting bolt 130 is screwed into the threaded hole at the side of the exoskeleton 100 from back to front through the side mounting plate 800. Due to the long Z-direction length of the exoskeleton 100, two second mounting bolts 130 are diagonally mounted to reduce the number of connecting pieces while ensuring the connection strength.

[0027] In an embodiment, as shown in Figs. 6 and 7, the back of the exoskeleton 100 is detachably provided with a back plate 600, and the second mounting plane is configured as the back of the back plate 600. Figure 1 When the mounting boundary required by the exoskeleton 100 is different, the back plate 600 with the same contour as the pipe contour can be replaced by disassembly, so that the back plate 600 is consistent with the pipe contour and is attached, improving the mounting stability of the exoskeleton 100, and there is no need to re-open the exoskeleton 100. Specifically, the mounting boundary refers to the mounting boundary of the chassis of the whole vehicle, and the ear structure is mounted on the chassis beam when mounted on the side, and the shape of the chassis beam can be linear, trapezoidal or special-shaped, so the mounting boundary is different. Therefore, if the back plate 600 is fixed in shape and cannot be disassembled, it cannot adapt to different shapes of the chassis beam, and it cannot be stably mounted on different chassis. Therefore, different adaptive shapes of the back plate 600 are produced according to the outer shape of the different chassis beams, the back plate 600 is used as a conversion component, and then combined with the exoskeleton 100 of the same shape. Not only is the ear structure more stable, but also cost is saved.

[0028] In a specific embodiment, as shown in Figs. 6 and 7, the back plate 600 is connected to the exoskeleton 100 by a third mounting bolt 140. In other specific embodiments, the back plate 600 is connected to the exoskeleton 100 by a quick plug structure such as a buckle or a latch. Figure 2

[0029] In an embodiment, as shown in Figs. 6 and 7, the back of the exoskeleton 100 is detachably provided with a back plate 600, and the second mounting plane is configured as the back of the back plate 600. Figure 2 When the mounting boundary required by the exoskeleton 100 is different, the back plate 600 with the same contour as the pipe contour can be replaced by disassembly, so that the back plate 600 is consistent with the pipe contour and is attached, improving the mounting stability of the exoskeleton 100, and there is no need to re-open the exoskeleton 100. Specifically, the mounting boundary refers to the mounting boundary of the chassis of the whole vehicle, and the ear structure is mounted on the chassis beam when mounted on the side, and the shape of the chassis beam can be linear, trapezoidal or special-shaped, so the mounting boundary is different. Therefore, if the back plate 600 is fixed in shape and cannot be disassembled, it cannot adapt to different shapes of the chassis beam, and it cannot be stably mounted on different chassis. Therefore, different adaptive shapes of the back plate 600 are produced according to the outer shape of the different chassis beams, the back plate 600 is used as a conversion component, and then combined with the exoskeleton 100 of the same shape. Not only is the ear structure more stable, but also cost is saved. Figure 4 Figure 4 In a specific embodiment, as shown in Figs. 6 and 7, the back plate 600 is connected to the exoskeleton 100 by a third mounting bolt 140. In other specific embodiments, the back plate 600 is connected to the exoskeleton 100 by a quick plug structure such as a buckle or a latch. As can be seen from Fig. 6, the hollow groove 150 is recessed from the back of the exoskeleton 100 and communicates with the ear space 110 in the middle of the exoskeleton 100. The hollow groove 150 can reduce the weight of the exoskeleton 100.​​

[0030] In one embodiment, the lifting lug body 200, upper buffer block 300, and lower buffer block 400 are all made of rubber, while the outer frame 100 is made of aluminum. The lifting lug body 200, upper buffer block 300, and lower buffer block 400 are vulcanized and fixed to the outer frame 100. The outer frame 100 is made of cast aluminum or machined aluminum, ensuring good corrosion resistance while maintaining a lightweight structure. The integrated vulcanized lifting lug body 200, upper buffer block 300, lower buffer block 400, and outer frame 100 form a lifting lug structure with good integrity, preventing individual components from easily detaching. The outer frame 100 forcibly restricts the displacement of the hook 700, resulting in a low deformation rate of the lifting lug structure.

[0031] In one embodiment, as shown in the appendix Figure 1 Appendix Figure 3 As shown, the elastic element 500 is a nylon elastic band, which is arranged laterally and its two ends are respectively attached and fixed to the inner wall of the lifting lug space 110. A nylon elastic band with appropriate elasticity and length is selected as the elastic element 500 according to the vehicle model configuration, and is then applied according to the attached... Figure 3 In this configuration, the elastic element 500 is horizontally arranged, with its two ends respectively glued and fixed to the left and right inner walls of the lifting lug space 110; a lifting hook 700 is installed in the middle lifting hole 210. When vibration occurs, the hook 700 causes the lifting lug body 200 to fluctuate up and down. When the lifting lug body 200 is not in contact with the elastic element 500, the fatigue load is concentrated near the left and right ends where the lifting lug body 200 connects to the outer frame 100; when the lifting lug body 200 contacts the elastic element 500, the fatigue load is partially dispersed to the left and right ends where the elastic element 500 connects to the outer frame 100, thereby reducing the fatigue load on the lifting lug body 200 and lowering the risk of breakage or failure of the lifting lug body 200.

[0032] It should be noted that the elastic element 500 in this application uses a nylon elastic band, for the following two reasons: First, nylon has lower cost and lighter weight, improving the economic performance and reducing the weight of the entire lifting lug structure. Second, when the lifting lug body 200 deforms, it makes surface contact with the elastic band, which neither damages the surface of the lifting lug body 200 nor hinders the transfer of some load, thus improving the durability of the lifting lug structure. (Appendix) Figure 7 The deformation (mm) - force (N) stiffness curves of the elastic band under both taut and slack installation states are displayed. It can be seen that, for the same deformation length, the taut elastic band experiences greater force and transfers more load. A longer elastic band will contact the lifting lug body 200 more slowly, thus only becoming effective when the lifting lug body 200 is significantly deformed. Additionally, the low-stiffness range is wider. Therefore, depending on the application requirements, the dynamic and static stiffness of the entire lifting lug structure can be adjusted by changing the length and tension of the elastic band, reducing the fatigue load on the lifting lug body.

[0033] In other embodiments, the elastic element 500 is a commonly used shock-absorbing element such as a disc spring or spring that can achieve a shock-absorbing effect. It should be noted that although metal elastic elements such as springs can achieve a shock-absorbing effect, when directly connected to the lug body 200 of the rubber element, it is not only easy to damage the rubber element, but also, considering the overall vehicle usage environment, the risk of metal elastic elements breaking, aging, and rusting is relatively high. The stiffness of the spring is easily affected, and the total weight of the lug structure is also increased.

[0034] In one embodiment, as shown in the appendix Figure 1 and attached Figure 3 As shown, the lifting lug body 200 is arched. By configuring the lifting lug body 200 in an arched shape, the supporting force of the lifting lug body 200 is increased, and the deformation when it is connected to the hook 700 is reduced, which helps to improve the service life of the lifting lug body 200.

[0035] In this embodiment, to further improve the buffering effect when the lug body 200 moves upward, the bottom surface of the upper buffer block 300 is wavy.

[0036] In this embodiment, to further match the deformation shape of the lug body 200 when it moves downward, the top surface of the lower buffer block 400 is recessed downward in the middle.

[0037] In summary, this application optimizes the lifting lug structure to enable both top and side mounting, adapts to different installation boundaries, and disperses the fatigue load application points of the lifting lug body, effectively improving its overall performance and extending its service life.

[0038] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A lifting lug structure for an automotive exhaust system, characterized in that, include: The outer frame (100) has a hollowed-out middle section forming a hanging lug space (110), with its top configured as a first mounting plane and its back configured as a second mounting plane; The lifting lug body (200) is located in the middle of the lifting lug space (110), and a lifting hole (210) is provided thereon. The upper buffer block (300) is disposed at the top inside the lug space (110); The lower buffer block (400) is disposed at the bottom of the lug space (110); Two elastic elements (500), one of which is disposed between the lug body (200) and the upper buffer block (300), and the other of which is disposed between the lug body (200) and the lower buffer block (400).

2. The lifting lug structure of the automotive exhaust system as described in claim 1, characterized in that: At least two first mounting bolts (120) are provided on the first mounting surface.

3. The lifting lug structure of the automotive exhaust system as described in claim 1, characterized in that: At least two second mounting bolts (130) are provided on the second mounting surface.

4. The lifting lug structure of the automotive exhaust system as described in claim 3, characterized in that: The back of the exoskeleton (100) is detachably provided with a back plate (600), and the second mounting plane is configured as the back of the back plate (600).

5. The lifting lug structure of the automotive exhaust system as described in claim 4, characterized in that: The back plate (600) is connected to the outer frame (100) by a third mounting bolt (140).

6. The hanger structure of the automobile exhaust system as described in any one of claims 1-5, characterized in that: The back of the exoskeleton (100) extends forward to form a hollow groove (150).

7. The lifting lug structure of the automobile exhaust system as described in any one of claims 1-5, characterized in that: The lug body (200), upper buffer block (300), and lower buffer block (400) are all made of rubber, and the outer frame (100) is made of aluminum. The lug body (200), upper buffer block (300), and lower buffer block (400) are vulcanized and fixed to the outer frame (100).

8. The lifting lug structure of the automobile exhaust system as described in any one of claims 1-5, characterized in that: The elastic element (500) is a nylon elastic band, which is arranged laterally and its two ends are respectively attached and fixed to the inner wall of the lifting lug space (110).

9. The lifting lug structure of the automobile exhaust system as described in claim 8, characterized in that: The main body of the lug (200) is arched.

10. The lifting lug structure of the automotive exhaust system as described in claim 9, characterized in that: The bottom surface of the upper buffer block (300) is wavy; and / or, The top surface of the lower buffer block (400) is concave downwards in the middle.

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